9. Vented Over Roof!

9. Vented Over Roof! In this video I show the details and assembly of the over roof design at 18 Woodland Grove. The assembly from top down is asphalt shingles, standard underlayment, Huber Advantech sheathing, 2 layers of 2x4 KD create the ventilation space, Benjamin Obdyke Vapor Dry SA, 1/2" CDX, then custom trusses with no overhangs and 18" raised heels for full insulation at the eaves, 18" cellulose insulation, interior strapping, Certainteed smart vapor retarder then 1/2" drywall. Key words Foundation layout footings concrete walls piping radon stone drainage xps insulation vapor control layer barrier air control layer insulation spray foam dense pack cellulose timber batt hp floor trusses double stud walls 2x4 2x6 trusses zip panel zip tape stretch tape zip liquid flash rip sill zipr sheathing Schuco European windows and doors 3m tape framing sheathing siding LP lap siding trim rainscreen ¾” ventilated rain screen Tyvek blower door testing Mitsubishi ducted heat pump Renewair ERV Aprilaire merv filters Santefe dehumidifier